1<?xml version='1.0' encoding='UTF-8'?>
2<xs:schema targetNamespace="http://www.tempuri.org/ImportedSchema" elementFormDefault="qualified" xmlns:tns="http://www.tempuri.org/ImportedSchema" xmlns:xs="http://www.w3.org/2001/XMLSchema">
3  
4  <xs:complexType name="AnotherType">
5    <xs:sequence>
6      <xs:element name="B">
7        <xs:complexType>
8          <xs:sequence>
9            <xs:element name="MyB" type="xs:string" />
10          </xs:sequence>
11          <xs:attribute name="BID" type="xs:int"/>
12        </xs:complexType>
13      </xs:element>
14    </xs:sequence>
15  </xs:complexType>
16
17  <xs:element name="AnotherElement" type="tns:AnotherType">
18    <xs:key name="AnotherKey">
19     <xs:selector xpath="tns:B"/>
20     <xs:field xpath="@BID"/>
21    </xs:key>
22  </xs:element>
23
24</xs:schema>
25